Thanks for the great advice folks,
Maybe I'm over thinking things but I've never broken down an engine to this level and put it back to working condition again. I really don't want to stuff up this up, I'm not sure I will come across another one of these again.
I've gone with the Permatex 29132 option, thanks again for the tips/links guys, you have saved me a good few quid there. I have ordered an 80ml tube but It's also gonna take a while for delivery as it is coming from Lithuania @ £10.50 (about a quarter of the price for Loctite 504).
One more question (when I get to it) is where do I position the ring gaps? I read a post somewhere on here about this being important but I cant find it again. Other than that, I have bought a honing tool and a torque wrench (thanks for the 15 lb-ft setting Gadge).
Cheers
Alan.